Mechanical Behavior of PMMA/SiO2 Multilayer Nanocomposites: Experiments and Molecular Dynamics Simulation
| Autor: | Xiangshi Zhen, Weimin Yang, Zhiwei Jiao, Yumei Ding, Cheng Lisheng, Meinong Shi, Liyan Zhang, Li Li |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Nanocomposite Polymers and Plastics Scanning electron microscope General Chemical Engineering Organic Chemistry Nanochemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polymer engineering 0104 chemical sciences chemistry.chemical_compound chemistry Ultimate tensile strength Materials Chemistry Composite material Fourier transform infrared spectroscopy Methyl methacrylate 0210 nano-technology Tensile testing |
| Zdroj: | Macromolecular Research. 28:266-274 |
| ISSN: | 2092-7673 1598-5032 |
| Popis: | Poly(methyl methacrylate) (PMMA)/nano-silica (nano-SiO2) nanocom-posite film with 256 layers containing different amounts of nano-SiO2 was manufactured by a new type of micro-nano multilayer co-extrusion technology. The structure, morphology and mechanical properties of PMMA/nano-SiO2 nanocomposite films were investigated through Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM) and tensile test Besides, molecular dynamics simulation ^J^ was adopted to study the dispersion and content effect on mechanical properties of PMMA/nano-SiO2 nanocomposite film. It is demonstrated that the tensile strength and the elongation at break of the composites improved with increasing nano-SiO2 content from 0 to 5 wt%, which was in good agreement with the Molecular Dynamics simulation. And the nanofiller dispersion in the multilayer nanocomposite film was better than that in the single-layer film with equivalent thickness under the effect of torsion lamination. Overall, the best performance was found for the nanocomposites of PMMA with nano-SiO2 content of 3.5 wt%. |
| Databáze: | OpenAIRE |
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